Which of these languages did Richard the Lionheart know the least?

Although born in Oxford and raised in England up to his eighth year, it is not known to what extent he used or understood English; he was an educated man who composed poetry and wrote in Limousin (lenga d'òc) and also in French. Richard spent very little time in England. He lived in his Duchy of Aquitaine in the southwest of France, preferring to use his kingdom as a source of revenue to support his armies.